Would it be a crime to send the "background" login sessions to swap? (I suspect that might be what's happening when the wife and kids swap between 3 or 4 sessi

Would it be a crime to send the "background" login sessions to swap? (I suspect that might be what's happening when the wife and kids swap between 3 or 4 sessions on one of the Ubuntu machines at home -- but Linux isn't dumping actual running programs out to swap as fast as possible to make room for the 500 MB Word doc you might open, either)